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35692fe0 JB |
1 | /* Lisp functions pertaining to editing. |
2 | Copyright (C) 1985, 1986, 1987, 1989 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 1, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | ||
21 | #include "config.h" | |
bfb61299 JB |
22 | |
23 | #ifdef VMS | |
24 | #include "pwd.h" | |
25 | #else | |
35692fe0 | 26 | #include <pwd.h> |
bfb61299 JB |
27 | #endif |
28 | ||
35692fe0 JB |
29 | #include "lisp.h" |
30 | #include "buffer.h" | |
31 | #include "window.h" | |
32 | ||
33 | #ifdef NEED_TIME_H | |
34 | #include <time.h> | |
35 | #else /* not NEED_TIME_H */ | |
36 | #ifdef HAVE_TIMEVAL | |
37 | #include <sys/time.h> | |
38 | #endif /* HAVE_TIMEVAL */ | |
39 | #endif /* not NEED_TIME_H */ | |
40 | ||
41 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
42 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
43 | ||
44 | /* Some static data, and a function to initialize it for each run */ | |
45 | ||
46 | Lisp_Object Vsystem_name; | |
47 | Lisp_Object Vuser_real_name; /* login name of current user ID */ | |
48 | Lisp_Object Vuser_full_name; /* full name of current user */ | |
49 | Lisp_Object Vuser_name; /* user name from USER or LOGNAME. */ | |
50 | ||
51 | void | |
52 | init_editfns () | |
53 | { | |
52b14ac0 | 54 | char *user_name; |
35692fe0 JB |
55 | register unsigned char *p, *q, *r; |
56 | struct passwd *pw; /* password entry for the current user */ | |
57 | extern char *index (); | |
58 | Lisp_Object tem; | |
59 | ||
60 | /* Set up system_name even when dumping. */ | |
61 | ||
62 | Vsystem_name = build_string (get_system_name ()); | |
63 | p = XSTRING (Vsystem_name)->data; | |
64 | while (*p) | |
65 | { | |
66 | if (*p == ' ' || *p == '\t') | |
67 | *p = '-'; | |
68 | p++; | |
69 | } | |
70 | ||
71 | #ifndef CANNOT_DUMP | |
72 | /* Don't bother with this on initial start when just dumping out */ | |
73 | if (!initialized) | |
74 | return; | |
75 | #endif /* not CANNOT_DUMP */ | |
76 | ||
77 | pw = (struct passwd *) getpwuid (getuid ()); | |
78 | Vuser_real_name = build_string (pw ? pw->pw_name : "unknown"); | |
79 | ||
52b14ac0 JB |
80 | /* Get the effective user name, by consulting environment variables, |
81 | or the effective uid if those are unset. */ | |
82 | user_name = (char *) getenv ("USER"); | |
35692fe0 | 83 | if (!user_name) |
52b14ac0 JB |
84 | user_name = (char *) getenv ("LOGNAME"); |
85 | if (!user_name) | |
86 | { | |
87 | pw = (struct passwd *) getpwuid (geteuid ()); | |
88 | user_name = (char *) (pw ? pw->pw_name : "unknown"); | |
89 | } | |
90 | Vuser_name = build_string (user_name); | |
35692fe0 | 91 | |
52b14ac0 JB |
92 | /* If the user name claimed in the environment vars differs from |
93 | the real uid, use the claimed name to find the full name. */ | |
35692fe0 | 94 | tem = Fstring_equal (Vuser_name, Vuser_real_name); |
52b14ac0 JB |
95 | if (NULL (tem)) |
96 | pw = (struct passwd *) getpwnam (XSTRING (Vuser_name)->data); | |
35692fe0 JB |
97 | |
98 | p = (unsigned char *) (pw ? USER_FULL_NAME : "unknown"); | |
99 | q = (unsigned char *) index (p, ','); | |
100 | Vuser_full_name = make_string (p, q ? q - p : strlen (p)); | |
101 | ||
102 | #ifdef AMPERSAND_FULL_NAME | |
103 | p = XSTRING (Vuser_full_name)->data; | |
104 | q = (char *) index (p, '&'); | |
105 | /* Substitute the login name for the &, upcasing the first character. */ | |
106 | if (q) | |
107 | { | |
108 | r = (char *) alloca (strlen (p) + XSTRING (Vuser_name)->size + 1); | |
109 | bcopy (p, r, q - p); | |
110 | r[q - p] = 0; | |
52b14ac0 | 111 | strcat (r, XSTRING (Vuser_name)->data); |
35692fe0 JB |
112 | r[q - p] = UPCASE (r[q - p]); |
113 | strcat (r, q + 1); | |
114 | Vuser_full_name = build_string (r); | |
115 | } | |
116 | #endif /* AMPERSAND_FULL_NAME */ | |
117 | } | |
118 | \f | |
119 | DEFUN ("char-to-string", Fchar_to_string, Schar_to_string, 1, 1, 0, | |
120 | "Convert arg CHAR to a one-character string containing that character.") | |
121 | (n) | |
122 | Lisp_Object n; | |
123 | { | |
124 | char c; | |
125 | CHECK_NUMBER (n, 0); | |
126 | ||
127 | c = XINT (n); | |
128 | return make_string (&c, 1); | |
129 | } | |
130 | ||
131 | DEFUN ("string-to-char", Fstring_to_char, Sstring_to_char, 1, 1, 0, | |
132 | "Convert arg STRING to a character, the first character of that string.") | |
133 | (str) | |
134 | register Lisp_Object str; | |
135 | { | |
136 | register Lisp_Object val; | |
137 | register struct Lisp_String *p; | |
138 | CHECK_STRING (str, 0); | |
139 | ||
140 | p = XSTRING (str); | |
141 | if (p->size) | |
142 | XFASTINT (val) = ((unsigned char *) p->data)[0]; | |
143 | else | |
144 | XFASTINT (val) = 0; | |
145 | return val; | |
146 | } | |
147 | \f | |
148 | static Lisp_Object | |
149 | buildmark (val) | |
150 | int val; | |
151 | { | |
152 | register Lisp_Object mark; | |
153 | mark = Fmake_marker (); | |
154 | Fset_marker (mark, make_number (val), Qnil); | |
155 | return mark; | |
156 | } | |
157 | ||
158 | DEFUN ("point", Fpoint, Spoint, 0, 0, 0, | |
159 | "Return value of point, as an integer.\n\ | |
160 | Beginning of buffer is position (point-min)") | |
161 | () | |
162 | { | |
163 | Lisp_Object temp; | |
164 | XFASTINT (temp) = point; | |
165 | return temp; | |
166 | } | |
167 | ||
168 | DEFUN ("point-marker", Fpoint_marker, Spoint_marker, 0, 0, 0, | |
169 | "Return value of point, as a marker object.") | |
170 | () | |
171 | { | |
172 | return buildmark (point); | |
173 | } | |
174 | ||
175 | int | |
176 | clip_to_bounds (lower, num, upper) | |
177 | int lower, num, upper; | |
178 | { | |
179 | if (num < lower) | |
180 | return lower; | |
181 | else if (num > upper) | |
182 | return upper; | |
183 | else | |
184 | return num; | |
185 | } | |
186 | ||
187 | DEFUN ("goto-char", Fgoto_char, Sgoto_char, 1, 1, "NGoto char: ", | |
188 | "Set point to POSITION, a number or marker.\n\ | |
189 | Beginning of buffer is position (point-min), end is (point-max).") | |
190 | (n) | |
191 | register Lisp_Object n; | |
192 | { | |
193 | CHECK_NUMBER_COERCE_MARKER (n, 0); | |
194 | ||
195 | SET_PT (clip_to_bounds (BEGV, XINT (n), ZV)); | |
196 | return n; | |
197 | } | |
198 | ||
199 | static Lisp_Object | |
200 | region_limit (beginningp) | |
201 | int beginningp; | |
202 | { | |
203 | register Lisp_Object m; | |
204 | m = Fmarker_position (current_buffer->mark); | |
205 | if (NULL (m)) error ("There is no region now"); | |
206 | if ((point < XFASTINT (m)) == beginningp) | |
207 | return (make_number (point)); | |
208 | else | |
209 | return (m); | |
210 | } | |
211 | ||
212 | DEFUN ("region-beginning", Fregion_beginning, Sregion_beginning, 0, 0, 0, | |
213 | "Return position of beginning of region, as an integer.") | |
214 | () | |
215 | { | |
216 | return (region_limit (1)); | |
217 | } | |
218 | ||
219 | DEFUN ("region-end", Fregion_end, Sregion_end, 0, 0, 0, | |
220 | "Return position of end of region, as an integer.") | |
221 | () | |
222 | { | |
223 | return (region_limit (0)); | |
224 | } | |
225 | ||
226 | #if 0 /* now in lisp code */ | |
227 | DEFUN ("mark", Fmark, Smark, 0, 0, 0, | |
228 | "Return this buffer's mark value as integer, or nil if no mark.\n\ | |
229 | If you are using this in an editing command, you are most likely making\n\ | |
230 | a mistake; see the documentation of `set-mark'.") | |
231 | () | |
232 | { | |
233 | return Fmarker_position (current_buffer->mark); | |
234 | } | |
235 | #endif /* commented out code */ | |
236 | ||
237 | DEFUN ("mark-marker", Fmark_marker, Smark_marker, 0, 0, 0, | |
238 | "Return this buffer's mark, as a marker object.\n\ | |
239 | Watch out! Moving this marker changes the mark position.\n\ | |
240 | If you set the marker not to point anywhere, the buffer will have no mark.") | |
241 | () | |
242 | { | |
243 | return current_buffer->mark; | |
244 | } | |
245 | ||
246 | #if 0 /* this is now in lisp code */ | |
247 | DEFUN ("set-mark", Fset_mark, Sset_mark, 1, 1, 0, | |
248 | "Set this buffer's mark to POS. Don't use this function!\n\ | |
249 | That is to say, don't use this function unless you want\n\ | |
250 | the user to see that the mark has moved, and you want the previous\n\ | |
251 | mark position to be lost.\n\ | |
252 | \n\ | |
253 | Normally, when a new mark is set, the old one should go on the stack.\n\ | |
254 | This is why most applications should use push-mark, not set-mark.\n\ | |
255 | \n\ | |
256 | Novice programmers often try to use the mark for the wrong purposes.\n\ | |
257 | The mark saves a location for the user's convenience.\n\ | |
258 | Most editing commands should not alter the mark.\n\ | |
259 | To remember a location for internal use in the Lisp program,\n\ | |
260 | store it in a Lisp variable. Example:\n\ | |
261 | \n\ | |
262 | (let ((beg (point))) (forward-line 1) (delete-region beg (point))).") | |
263 | (pos) | |
264 | Lisp_Object pos; | |
265 | { | |
266 | if (NULL (pos)) | |
267 | { | |
268 | current_buffer->mark = Qnil; | |
269 | return Qnil; | |
270 | } | |
271 | CHECK_NUMBER_COERCE_MARKER (pos, 0); | |
272 | ||
273 | if (NULL (current_buffer->mark)) | |
274 | current_buffer->mark = Fmake_marker (); | |
275 | ||
276 | Fset_marker (current_buffer->mark, pos, Qnil); | |
277 | return pos; | |
278 | } | |
279 | #endif /* commented-out code */ | |
280 | ||
281 | Lisp_Object | |
282 | save_excursion_save () | |
283 | { | |
284 | register int visible = XBUFFER (XWINDOW (selected_window)->buffer) == current_buffer; | |
285 | ||
286 | return Fcons (Fpoint_marker (), | |
287 | Fcons (Fcopy_marker (current_buffer->mark), visible ? Qt : Qnil)); | |
288 | } | |
289 | ||
290 | Lisp_Object | |
291 | save_excursion_restore (info) | |
292 | register Lisp_Object info; | |
293 | { | |
294 | register Lisp_Object tem; | |
295 | ||
296 | tem = Fmarker_buffer (Fcar (info)); | |
297 | /* If buffer being returned to is now deleted, avoid error */ | |
298 | /* Otherwise could get error here while unwinding to top level | |
299 | and crash */ | |
300 | /* In that case, Fmarker_buffer returns nil now. */ | |
301 | if (NULL (tem)) | |
302 | return Qnil; | |
303 | Fset_buffer (tem); | |
304 | tem = Fcar (info); | |
305 | Fgoto_char (tem); | |
306 | unchain_marker (tem); | |
307 | tem = Fcar (Fcdr (info)); | |
308 | Fset_marker (current_buffer->mark, tem, Fcurrent_buffer ()); | |
309 | unchain_marker (tem); | |
310 | tem = Fcdr (Fcdr (info)); | |
311 | if (!NULL (tem) && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
312 | Fswitch_to_buffer (Fcurrent_buffer (), Qnil); | |
313 | return Qnil; | |
314 | } | |
315 | ||
316 | DEFUN ("save-excursion", Fsave_excursion, Ssave_excursion, 0, UNEVALLED, 0, | |
317 | "Save point, mark, and current buffer; execute BODY; restore those things.\n\ | |
318 | Executes BODY just like `progn'.\n\ | |
319 | The values of point, mark and the current buffer are restored\n\ | |
320 | even in case of abnormal exit (throw or error).") | |
321 | (args) | |
322 | Lisp_Object args; | |
323 | { | |
324 | register Lisp_Object val; | |
325 | int count = specpdl_ptr - specpdl; | |
326 | ||
327 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
328 | ||
329 | val = Fprogn (args); | |
330 | return unbind_to (count, val); | |
331 | } | |
332 | \f | |
333 | DEFUN ("buffer-size", Fbufsize, Sbufsize, 0, 0, 0, | |
334 | "Return the number of characters in the current buffer.") | |
335 | () | |
336 | { | |
337 | Lisp_Object temp; | |
338 | XFASTINT (temp) = Z - BEG; | |
339 | return temp; | |
340 | } | |
341 | ||
342 | DEFUN ("point-min", Fpoint_min, Spoint_min, 0, 0, 0, | |
343 | "Return the minimum permissible value of point in the current buffer.\n\ | |
344 | This is 1, unless a clipping restriction is in effect.") | |
345 | () | |
346 | { | |
347 | Lisp_Object temp; | |
348 | XFASTINT (temp) = BEGV; | |
349 | return temp; | |
350 | } | |
351 | ||
352 | DEFUN ("point-min-marker", Fpoint_min_marker, Spoint_min_marker, 0, 0, 0, | |
353 | "Return a marker to the minimum permissible value of point in this buffer.\n\ | |
354 | This is the beginning, unless a clipping restriction is in effect.") | |
355 | () | |
356 | { | |
357 | return buildmark (BEGV); | |
358 | } | |
359 | ||
360 | DEFUN ("point-max", Fpoint_max, Spoint_max, 0, 0, 0, | |
361 | "Return the maximum permissible value of point in the current buffer.\n\ | |
362 | This is (1+ (buffer-size)), unless a clipping restriction is in effect,\n\ | |
363 | in which case it is less.") | |
364 | () | |
365 | { | |
366 | Lisp_Object temp; | |
367 | XFASTINT (temp) = ZV; | |
368 | return temp; | |
369 | } | |
370 | ||
371 | DEFUN ("point-max-marker", Fpoint_max_marker, Spoint_max_marker, 0, 0, 0, | |
372 | "Return a marker to the maximum permissible value of point in this buffer.\n\ | |
373 | This is (1+ (buffer-size)), unless a clipping restriction is in effect,\n\ | |
374 | in which case it is less.") | |
375 | () | |
376 | { | |
377 | return buildmark (ZV); | |
378 | } | |
379 | ||
380 | DEFUN ("following-char", Ffollchar, Sfollchar, 0, 0, 0, | |
381 | "Return the character following point, as a number.") | |
382 | () | |
383 | { | |
384 | Lisp_Object temp; | |
385 | XFASTINT (temp) = FETCH_CHAR (point); | |
386 | return temp; | |
387 | } | |
388 | ||
389 | DEFUN ("preceding-char", Fprevchar, Sprevchar, 0, 0, 0, | |
390 | "Return the character preceding point, as a number.") | |
391 | () | |
392 | { | |
393 | Lisp_Object temp; | |
394 | if (point <= BEGV) | |
395 | XFASTINT (temp) = 0; | |
396 | else | |
397 | XFASTINT (temp) = FETCH_CHAR (point - 1); | |
398 | return temp; | |
399 | } | |
400 | ||
401 | DEFUN ("bobp", Fbobp, Sbobp, 0, 0, 0, | |
402 | "Return T if point is at the beginning of the buffer.\n\ | |
403 | If the buffer is narrowed, this means the beginning of the narrowed part.") | |
404 | () | |
405 | { | |
406 | if (point == BEGV) | |
407 | return Qt; | |
408 | return Qnil; | |
409 | } | |
410 | ||
411 | DEFUN ("eobp", Feobp, Seobp, 0, 0, 0, | |
412 | "Return T if point is at the end of the buffer.\n\ | |
413 | If the buffer is narrowed, this means the end of the narrowed part.") | |
414 | () | |
415 | { | |
416 | if (point == ZV) | |
417 | return Qt; | |
418 | return Qnil; | |
419 | } | |
420 | ||
421 | DEFUN ("bolp", Fbolp, Sbolp, 0, 0, 0, | |
422 | "Return T if point is at the beginning of a line.") | |
423 | () | |
424 | { | |
425 | if (point == BEGV || FETCH_CHAR (point - 1) == '\n') | |
426 | return Qt; | |
427 | return Qnil; | |
428 | } | |
429 | ||
430 | DEFUN ("eolp", Feolp, Seolp, 0, 0, 0, | |
431 | "Return T if point is at the end of a line.\n\ | |
432 | `End of a line' includes point being at the end of the buffer.") | |
433 | () | |
434 | { | |
435 | if (point == ZV || FETCH_CHAR (point) == '\n') | |
436 | return Qt; | |
437 | return Qnil; | |
438 | } | |
439 | ||
440 | DEFUN ("char-after", Fchar_after, Schar_after, 1, 1, 0, | |
441 | "Return character in current buffer at position POS.\n\ | |
442 | POS is an integer or a buffer pointer.\n\ | |
443 | If POS is out of range, the value is nil.") | |
444 | (pos) | |
445 | Lisp_Object pos; | |
446 | { | |
447 | register Lisp_Object val; | |
448 | register int n; | |
449 | ||
450 | CHECK_NUMBER_COERCE_MARKER (pos, 0); | |
451 | ||
452 | n = XINT (pos); | |
453 | if (n < BEGV || n >= ZV) return Qnil; | |
454 | ||
455 | XFASTINT (val) = FETCH_CHAR (n); | |
456 | return val; | |
457 | } | |
458 | \f | |
459 | DEFUN ("user-login-name", Fuser_login_name, Suser_login_name, 0, 0, 0, | |
460 | "Return the name under which the user logged in, as a string.\n\ | |
461 | This is based on the effective uid, not the real uid.\n\ | |
462 | Also, if the environment variable USER or LOGNAME is set,\n\ | |
463 | that determines the value of this function.") | |
464 | () | |
465 | { | |
466 | return Vuser_name; | |
467 | } | |
468 | ||
469 | DEFUN ("user-real-login-name", Fuser_real_login_name, Suser_real_login_name, | |
470 | 0, 0, 0, | |
471 | "Return the name of the user's real uid, as a string.\n\ | |
472 | Differs from `user-login-name' when running under `su'.") | |
473 | () | |
474 | { | |
475 | return Vuser_real_name; | |
476 | } | |
477 | ||
478 | DEFUN ("user-uid", Fuser_uid, Suser_uid, 0, 0, 0, | |
479 | "Return the effective uid of Emacs, as an integer.") | |
480 | () | |
481 | { | |
482 | return make_number (geteuid ()); | |
483 | } | |
484 | ||
485 | DEFUN ("user-real-uid", Fuser_real_uid, Suser_real_uid, 0, 0, 0, | |
486 | "Return the real uid of Emacs, as an integer.") | |
487 | () | |
488 | { | |
489 | return make_number (getuid ()); | |
490 | } | |
491 | ||
492 | DEFUN ("user-full-name", Fuser_full_name, Suser_full_name, 0, 0, 0, | |
493 | "Return the full name of the user logged in, as a string.") | |
494 | () | |
495 | { | |
496 | return Vuser_full_name; | |
497 | } | |
498 | ||
499 | DEFUN ("system-name", Fsystem_name, Ssystem_name, 0, 0, 0, | |
500 | "Return the name of the machine you are running on, as a string.") | |
501 | () | |
502 | { | |
503 | return Vsystem_name; | |
504 | } | |
505 | ||
d940e0e4 JB |
506 | DEFUN ("current-time", Fcurrent_time, Scurrent_time, 0, 0, 0, |
507 | "Return the current time, as an integer.") | |
508 | () | |
509 | { | |
510 | return make_number (time(0)); | |
511 | } | |
512 | \f | |
513 | ||
35692fe0 JB |
514 | DEFUN ("current-time-string", Fcurrent_time_string, Scurrent_time_string, 0, 0, 0, |
515 | "Return the current time, as a human-readable string.\n\ | |
516 | Programs can use it too, since the number of columns in each field is fixed.\n\ | |
517 | The format is `Sun Sep 16 01:03:52 1973'.\n\ | |
518 | In a future Emacs version, the time zone may be added at the end,\n\ | |
519 | if we can figure out a reasonably easy way to get that information.") | |
520 | () | |
521 | { | |
522 | long current_time = time ((long *) 0); | |
523 | char buf[30]; | |
524 | register char *tem = (char *) ctime (¤t_time); | |
525 | ||
526 | strncpy (buf, tem, 24); | |
527 | buf[24] = 0; | |
528 | ||
529 | return build_string (buf); | |
530 | } | |
531 | ||
532 | #ifdef unix | |
533 | ||
534 | DEFUN ("set-default-file-mode", Fset_default_file_mode, Sset_default_file_mode, 1, 1, "p", | |
535 | "Set Unix `umask' value to ARGUMENT, and return old value.\n\ | |
536 | The `umask' value is the default protection mode for new files.") | |
537 | (nmask) | |
538 | Lisp_Object nmask; | |
539 | { | |
540 | CHECK_NUMBER (nmask, 0); | |
541 | return make_number (umask (XINT (nmask))); | |
542 | } | |
543 | ||
544 | DEFUN ("unix-sync", Funix_sync, Sunix_sync, 0, 0, "", | |
545 | "Tell Unix to finish all pending disk updates.") | |
546 | () | |
547 | { | |
548 | sync (); | |
549 | return Qnil; | |
550 | } | |
551 | ||
552 | #endif /* unix */ | |
553 | \f | |
554 | void | |
555 | insert1 (arg) | |
556 | Lisp_Object arg; | |
557 | { | |
558 | Finsert (1, &arg); | |
559 | } | |
560 | ||
52b14ac0 JB |
561 | |
562 | /* Callers passing one argument to Finsert need not gcpro the | |
563 | argument "array", since the only element of the array will | |
564 | not be used after calling insert or insert_from_string, so | |
565 | we don't care if it gets trashed. */ | |
566 | ||
35692fe0 JB |
567 | DEFUN ("insert", Finsert, Sinsert, 0, MANY, 0, |
568 | "Insert the arguments, either strings or characters, at point.\n\ | |
569 | Point moves forward so that it ends up after the inserted text.\n\ | |
570 | Any other markers at the point of insertion remain before the text.") | |
571 | (nargs, args) | |
572 | int nargs; | |
573 | register Lisp_Object *args; | |
574 | { | |
575 | register int argnum; | |
576 | register Lisp_Object tem; | |
577 | char str[1]; | |
35692fe0 JB |
578 | |
579 | for (argnum = 0; argnum < nargs; argnum++) | |
580 | { | |
581 | tem = args[argnum]; | |
582 | retry: | |
583 | if (XTYPE (tem) == Lisp_Int) | |
584 | { | |
585 | str[0] = XINT (tem); | |
586 | insert (str, 1); | |
587 | } | |
588 | else if (XTYPE (tem) == Lisp_String) | |
589 | { | |
590 | insert_from_string (tem, 0, XSTRING (tem)->size); | |
591 | } | |
592 | else | |
593 | { | |
594 | tem = wrong_type_argument (Qchar_or_string_p, tem); | |
595 | goto retry; | |
596 | } | |
597 | } | |
598 | ||
35692fe0 JB |
599 | return Qnil; |
600 | } | |
601 | ||
602 | DEFUN ("insert-before-markers", Finsert_before_markers, Sinsert_before_markers, 0, MANY, 0, | |
603 | "Insert strings or characters at point, relocating markers after the text.\n\ | |
604 | Point moves forward so that it ends up after the inserted text.\n\ | |
605 | Any other markers at the point of insertion also end up after the text.") | |
606 | (nargs, args) | |
607 | int nargs; | |
608 | register Lisp_Object *args; | |
609 | { | |
610 | register int argnum; | |
611 | register Lisp_Object tem; | |
612 | char str[1]; | |
35692fe0 JB |
613 | |
614 | for (argnum = 0; argnum < nargs; argnum++) | |
615 | { | |
616 | tem = args[argnum]; | |
617 | retry: | |
618 | if (XTYPE (tem) == Lisp_Int) | |
619 | { | |
620 | str[0] = XINT (tem); | |
621 | insert_before_markers (str, 1); | |
622 | } | |
623 | else if (XTYPE (tem) == Lisp_String) | |
624 | { | |
625 | insert_from_string_before_markers (tem, 0, XSTRING (tem)->size); | |
626 | } | |
627 | else | |
628 | { | |
629 | tem = wrong_type_argument (Qchar_or_string_p, tem); | |
630 | goto retry; | |
631 | } | |
632 | } | |
633 | ||
35692fe0 JB |
634 | return Qnil; |
635 | } | |
636 | \f | |
637 | DEFUN ("insert-char", Finsert_char, Sinsert_char, 2, 2, 0, | |
638 | "Insert COUNT (second arg) copies of CHAR (first arg).\n\ | |
639 | Point and all markers are affected as in the function `insert'.\n\ | |
640 | Both arguments are required.") | |
641 | (chr, count) | |
642 | Lisp_Object chr, count; | |
643 | { | |
644 | register unsigned char *string; | |
645 | register int strlen; | |
646 | register int i, n; | |
647 | ||
648 | CHECK_NUMBER (chr, 0); | |
649 | CHECK_NUMBER (count, 1); | |
650 | ||
651 | n = XINT (count); | |
652 | if (n <= 0) | |
653 | return Qnil; | |
654 | strlen = min (n, 256); | |
655 | string = (unsigned char *) alloca (strlen); | |
656 | for (i = 0; i < strlen; i++) | |
657 | string[i] = XFASTINT (chr); | |
658 | while (n >= strlen) | |
659 | { | |
660 | insert (string, strlen); | |
661 | n -= strlen; | |
662 | } | |
663 | if (n > 0) | |
664 | insert (string, n); | |
665 | return Qnil; | |
666 | } | |
667 | ||
668 | \f | |
669 | /* Return a string with the contents of the current region */ | |
670 | ||
671 | DEFUN ("buffer-substring", Fbuffer_substring, Sbuffer_substring, 2, 2, 0, | |
672 | "Return the contents of part of the current buffer as a string.\n\ | |
673 | The two arguments START and END are character positions;\n\ | |
674 | they can be in either order.") | |
675 | (b, e) | |
676 | Lisp_Object b, e; | |
677 | { | |
678 | register int beg, end; | |
679 | Lisp_Object result; | |
680 | ||
681 | validate_region (&b, &e); | |
682 | beg = XINT (b); | |
683 | end = XINT (e); | |
684 | ||
685 | if (beg < GPT && end > GPT) | |
686 | move_gap (beg); | |
687 | ||
688 | /* Plain old make_string calls make_uninit_string, which can cause | |
689 | the buffer arena to be compacted. make_string has no way of | |
690 | knowing that the data has been moved, and thus copies the wrong | |
691 | data into the string. This doesn't effect most of the other | |
692 | users of make_string, so it should be left as is. */ | |
693 | result = make_uninit_string (end - beg); | |
694 | bcopy (&FETCH_CHAR (beg), XSTRING (result)->data, end - beg); | |
695 | ||
696 | return result; | |
697 | } | |
698 | ||
699 | DEFUN ("buffer-string", Fbuffer_string, Sbuffer_string, 0, 0, 0, | |
700 | "Return the contents of the current buffer as a string.") | |
701 | () | |
702 | { | |
703 | if (BEGV < GPT && ZV > GPT) | |
704 | move_gap (BEGV); | |
705 | return make_string (BEGV_ADDR, ZV - BEGV); | |
706 | } | |
707 | ||
708 | DEFUN ("insert-buffer-substring", Finsert_buffer_substring, Sinsert_buffer_substring, | |
709 | 1, 3, 0, | |
710 | "Insert before point a substring of the contents buffer BUFFER.\n\ | |
711 | BUFFER may be a buffer or a buffer name.\n\ | |
712 | Arguments START and END are character numbers specifying the substring.\n\ | |
713 | They default to the beginning and the end of BUFFER.") | |
714 | (buf, b, e) | |
715 | Lisp_Object buf, b, e; | |
716 | { | |
717 | register int beg, end, exch; | |
718 | register struct buffer *bp; | |
719 | ||
720 | buf = Fget_buffer (buf); | |
721 | bp = XBUFFER (buf); | |
722 | ||
723 | if (NULL (b)) | |
724 | beg = BUF_BEGV (bp); | |
725 | else | |
726 | { | |
727 | CHECK_NUMBER_COERCE_MARKER (b, 0); | |
728 | beg = XINT (b); | |
729 | } | |
730 | if (NULL (e)) | |
731 | end = BUF_ZV (bp); | |
732 | else | |
733 | { | |
734 | CHECK_NUMBER_COERCE_MARKER (e, 1); | |
735 | end = XINT (e); | |
736 | } | |
737 | ||
738 | if (beg > end) | |
739 | exch = beg, beg = end, end = exch; | |
740 | ||
741 | /* Move the gap or create enough gap in the current buffer. */ | |
742 | ||
743 | if (point != GPT) | |
744 | move_gap (point); | |
745 | if (GAP_SIZE < end - beg) | |
746 | make_gap (end - beg - GAP_SIZE); | |
747 | ||
748 | if (!(BUF_BEGV (bp) <= beg | |
749 | && beg <= end | |
750 | && end <= BUF_ZV (bp))) | |
751 | args_out_of_range (b, e); | |
752 | ||
753 | /* Now the actual insertion will not do any gap motion, | |
754 | so it matters not if BUF is the current buffer. */ | |
755 | if (beg < BUF_GPT (bp)) | |
756 | { | |
757 | insert (BUF_CHAR_ADDRESS (bp, beg), min (end, BUF_GPT (bp)) - beg); | |
758 | beg = min (end, BUF_GPT (bp)); | |
759 | } | |
760 | if (beg < end) | |
761 | insert (BUF_CHAR_ADDRESS (bp, beg), end - beg); | |
762 | ||
763 | return Qnil; | |
764 | } | |
765 | \f | |
766 | DEFUN ("subst-char-in-region", Fsubst_char_in_region, | |
767 | Ssubst_char_in_region, 4, 5, 0, | |
768 | "From START to END, replace FROMCHAR with TOCHAR each time it occurs.\n\ | |
769 | If optional arg NOUNDO is non-nil, don't record this change for undo\n\ | |
770 | and don't mark the buffer as really changed.") | |
771 | (start, end, fromchar, tochar, noundo) | |
772 | Lisp_Object start, end, fromchar, tochar, noundo; | |
773 | { | |
774 | register int pos, stop, look; | |
775 | ||
776 | validate_region (&start, &end); | |
777 | CHECK_NUMBER (fromchar, 2); | |
778 | CHECK_NUMBER (tochar, 3); | |
779 | ||
780 | pos = XINT (start); | |
781 | stop = XINT (end); | |
782 | look = XINT (fromchar); | |
783 | ||
784 | modify_region (pos, stop); | |
785 | if (! NULL (noundo)) | |
786 | { | |
787 | if (MODIFF - 1 == current_buffer->save_modified) | |
788 | current_buffer->save_modified++; | |
789 | if (MODIFF - 1 == current_buffer->auto_save_modified) | |
790 | current_buffer->auto_save_modified++; | |
791 | } | |
792 | ||
793 | while (pos < stop) | |
794 | { | |
795 | if (FETCH_CHAR (pos) == look) | |
796 | { | |
797 | if (NULL (noundo)) | |
798 | record_change (pos, 1); | |
799 | FETCH_CHAR (pos) = XINT (tochar); | |
800 | if (NULL (noundo)) | |
801 | signal_after_change (pos, 1, 1); | |
802 | } | |
803 | pos++; | |
804 | } | |
805 | ||
806 | return Qnil; | |
807 | } | |
808 | ||
809 | DEFUN ("translate-region", Ftranslate_region, Stranslate_region, 3, 3, 0, | |
810 | "From START to END, translate characters according to TABLE.\n\ | |
811 | TABLE is a string; the Nth character in it is the mapping\n\ | |
812 | for the character with code N. Returns the number of characters changed.") | |
813 | (start, end, table) | |
814 | Lisp_Object start; | |
815 | Lisp_Object end; | |
816 | register Lisp_Object table; | |
817 | { | |
818 | register int pos, stop; /* Limits of the region. */ | |
819 | register unsigned char *tt; /* Trans table. */ | |
820 | register int oc; /* Old character. */ | |
821 | register int nc; /* New character. */ | |
822 | int cnt; /* Number of changes made. */ | |
823 | Lisp_Object z; /* Return. */ | |
824 | int size; /* Size of translate table. */ | |
825 | ||
826 | validate_region (&start, &end); | |
827 | CHECK_STRING (table, 2); | |
828 | ||
829 | size = XSTRING (table)->size; | |
830 | tt = XSTRING (table)->data; | |
831 | ||
832 | pos = XINT (start); | |
833 | stop = XINT (end); | |
834 | modify_region (pos, stop); | |
835 | ||
836 | cnt = 0; | |
837 | for (; pos < stop; ++pos) | |
838 | { | |
839 | oc = FETCH_CHAR (pos); | |
840 | if (oc < size) | |
841 | { | |
842 | nc = tt[oc]; | |
843 | if (nc != oc) | |
844 | { | |
845 | record_change (pos, 1); | |
846 | FETCH_CHAR (pos) = nc; | |
847 | signal_after_change (pos, 1, 1); | |
848 | ++cnt; | |
849 | } | |
850 | } | |
851 | } | |
852 | ||
853 | XFASTINT (z) = cnt; | |
854 | return (z); | |
855 | } | |
856 | ||
857 | DEFUN ("delete-region", Fdelete_region, Sdelete_region, 2, 2, "r", | |
858 | "Delete the text between point and mark.\n\ | |
859 | When called from a program, expects two arguments,\n\ | |
860 | positions (integers or markers) specifying the stretch to be deleted.") | |
861 | (b, e) | |
862 | Lisp_Object b, e; | |
863 | { | |
864 | validate_region (&b, &e); | |
865 | del_range (XINT (b), XINT (e)); | |
866 | return Qnil; | |
867 | } | |
868 | \f | |
869 | DEFUN ("widen", Fwiden, Swiden, 0, 0, "", | |
870 | "Remove restrictions (narrowing) from current buffer.\n\ | |
871 | This allows the buffer's full text to be seen and edited.") | |
872 | () | |
873 | { | |
874 | BEGV = BEG; | |
875 | SET_BUF_ZV (current_buffer, Z); | |
876 | clip_changed = 1; | |
52b14ac0 JB |
877 | /* Changing the buffer bounds invalidates any recorded current column. */ |
878 | invalidate_current_column (); | |
35692fe0 JB |
879 | return Qnil; |
880 | } | |
881 | ||
882 | DEFUN ("narrow-to-region", Fnarrow_to_region, Snarrow_to_region, 2, 2, "r", | |
883 | "Restrict editing in this buffer to the current region.\n\ | |
884 | The rest of the text becomes temporarily invisible and untouchable\n\ | |
885 | but is not deleted; if you save the buffer in a file, the invisible\n\ | |
886 | text is included in the file. \\[widen] makes all visible again.\n\ | |
887 | See also `save-restriction'.\n\ | |
888 | \n\ | |
889 | When calling from a program, pass two arguments; positions (integers\n\ | |
890 | or markers) bounding the text that should remain visible.") | |
891 | (b, e) | |
892 | register Lisp_Object b, e; | |
893 | { | |
894 | register int i; | |
895 | ||
896 | CHECK_NUMBER_COERCE_MARKER (b, 0); | |
897 | CHECK_NUMBER_COERCE_MARKER (e, 1); | |
898 | ||
899 | if (XINT (b) > XINT (e)) | |
900 | { | |
901 | i = XFASTINT (b); | |
902 | b = e; | |
903 | XFASTINT (e) = i; | |
904 | } | |
905 | ||
906 | if (!(BEG <= XINT (b) && XINT (b) <= XINT (e) && XINT (e) <= Z)) | |
907 | args_out_of_range (b, e); | |
908 | ||
909 | BEGV = XFASTINT (b); | |
910 | SET_BUF_ZV (current_buffer, XFASTINT (e)); | |
911 | if (point < XFASTINT (b)) | |
912 | SET_PT (XFASTINT (b)); | |
913 | if (point > XFASTINT (e)) | |
914 | SET_PT (XFASTINT (e)); | |
915 | clip_changed = 1; | |
52b14ac0 JB |
916 | /* Changing the buffer bounds invalidates any recorded current column. */ |
917 | invalidate_current_column (); | |
35692fe0 JB |
918 | return Qnil; |
919 | } | |
920 | ||
921 | Lisp_Object | |
922 | save_restriction_save () | |
923 | { | |
924 | register Lisp_Object bottom, top; | |
925 | /* Note: I tried using markers here, but it does not win | |
926 | because insertion at the end of the saved region | |
927 | does not advance mh and is considered "outside" the saved region. */ | |
928 | XFASTINT (bottom) = BEGV - BEG; | |
929 | XFASTINT (top) = Z - ZV; | |
930 | ||
931 | return Fcons (Fcurrent_buffer (), Fcons (bottom, top)); | |
932 | } | |
933 | ||
934 | Lisp_Object | |
935 | save_restriction_restore (data) | |
936 | Lisp_Object data; | |
937 | { | |
938 | register struct buffer *buf; | |
939 | register int newhead, newtail; | |
940 | register Lisp_Object tem; | |
941 | ||
942 | buf = XBUFFER (XCONS (data)->car); | |
943 | ||
944 | data = XCONS (data)->cdr; | |
945 | ||
946 | tem = XCONS (data)->car; | |
947 | newhead = XINT (tem); | |
948 | tem = XCONS (data)->cdr; | |
949 | newtail = XINT (tem); | |
950 | if (newhead + newtail > BUF_Z (buf) - BUF_BEG (buf)) | |
951 | { | |
952 | newhead = 0; | |
953 | newtail = 0; | |
954 | } | |
955 | BUF_BEGV (buf) = BUF_BEG (buf) + newhead; | |
956 | SET_BUF_ZV (buf, BUF_Z (buf) - newtail); | |
957 | clip_changed = 1; | |
958 | ||
959 | /* If point is outside the new visible range, move it inside. */ | |
960 | SET_BUF_PT (buf, | |
961 | clip_to_bounds (BUF_BEGV (buf), BUF_PT (buf), BUF_ZV (buf))); | |
962 | ||
963 | return Qnil; | |
964 | } | |
965 | ||
966 | DEFUN ("save-restriction", Fsave_restriction, Ssave_restriction, 0, UNEVALLED, 0, | |
967 | "Execute BODY, saving and restoring current buffer's restrictions.\n\ | |
968 | The buffer's restrictions make parts of the beginning and end invisible.\n\ | |
969 | \(They are set up with `narrow-to-region' and eliminated with `widen'.)\n\ | |
970 | This special form, `save-restriction', saves the current buffer's restrictions\n\ | |
971 | when it is entered, and restores them when it is exited.\n\ | |
972 | So any `narrow-to-region' within BODY lasts only until the end of the form.\n\ | |
973 | The old restrictions settings are restored\n\ | |
974 | even in case of abnormal exit (throw or error).\n\ | |
975 | \n\ | |
976 | The value returned is the value of the last form in BODY.\n\ | |
977 | \n\ | |
978 | `save-restriction' can get confused if, within the BODY, you widen\n\ | |
979 | and then make changes outside the area within the saved restrictions.\n\ | |
980 | \n\ | |
981 | Note: if you are using both `save-excursion' and `save-restriction',\n\ | |
982 | use `save-excursion' outermost:\n\ | |
983 | (save-excursion (save-restriction ...))") | |
984 | (body) | |
985 | Lisp_Object body; | |
986 | { | |
987 | register Lisp_Object val; | |
988 | int count = specpdl_ptr - specpdl; | |
989 | ||
990 | record_unwind_protect (save_restriction_restore, save_restriction_save ()); | |
991 | val = Fprogn (body); | |
992 | return unbind_to (count, val); | |
993 | } | |
994 | \f | |
995 | DEFUN ("message", Fmessage, Smessage, 1, MANY, 0, | |
996 | "Print a one-line message at the bottom of the screen.\n\ | |
997 | The first argument is a control string.\n\ | |
998 | It may contain %s or %d or %c to print successive following arguments.\n\ | |
999 | %s means print an argument as a string, %d means print as number in decimal,\n\ | |
1000 | %c means print a number as a single character.\n\ | |
1001 | The argument used by %s must be a string or a symbol;\n\ | |
1002 | the argument used by %d or %c must be a number.") | |
1003 | (nargs, args) | |
1004 | int nargs; | |
1005 | Lisp_Object *args; | |
1006 | { | |
1007 | register Lisp_Object val; | |
1008 | ||
35692fe0 JB |
1009 | val = Fformat (nargs, args); |
1010 | message ("%s", XSTRING (val)->data); | |
1011 | return val; | |
1012 | } | |
1013 | ||
1014 | DEFUN ("format", Fformat, Sformat, 1, MANY, 0, | |
1015 | "Format a string out of a control-string and arguments.\n\ | |
1016 | The first argument is a control string.\n\ | |
1017 | The other arguments are substituted into it to make the result, a string.\n\ | |
1018 | It may contain %-sequences meaning to substitute the next argument.\n\ | |
1019 | %s means print a string argument. Actually, prints any object, with `princ'.\n\ | |
1020 | %d means print as number in decimal (%o octal, %x hex).\n\ | |
1021 | %c means print a number as a single character.\n\ | |
1022 | %S means print any object as an s-expression (using prin1).\n\ | |
52b14ac0 JB |
1023 | The argument used for %d, %o, %x or %c must be a number.\n\ |
1024 | Use %% to put a single % into the output.") | |
35692fe0 JB |
1025 | (nargs, args) |
1026 | int nargs; | |
1027 | register Lisp_Object *args; | |
1028 | { | |
1029 | register int n; /* The number of the next arg to substitute */ | |
1030 | register int total = 5; /* An estimate of the final length */ | |
1031 | char *buf; | |
1032 | register unsigned char *format, *end; | |
1033 | int length; | |
1034 | extern char *index (); | |
1035 | /* It should not be necessary to GCPRO ARGS, because | |
1036 | the caller in the interpreter should take care of that. */ | |
1037 | ||
1038 | CHECK_STRING (args[0], 0); | |
1039 | format = XSTRING (args[0])->data; | |
1040 | end = format + XSTRING (args[0])->size; | |
1041 | ||
1042 | n = 0; | |
1043 | while (format != end) | |
1044 | if (*format++ == '%') | |
1045 | { | |
1046 | int minlen; | |
1047 | ||
1048 | /* Process a numeric arg and skip it. */ | |
1049 | minlen = atoi (format); | |
1050 | if (minlen > 0) | |
1051 | total += minlen; | |
1052 | else | |
1053 | total -= minlen; | |
1054 | while ((*format >= '0' && *format <= '9') | |
1055 | || *format == '-' || *format == ' ' || *format == '.') | |
1056 | format++; | |
1057 | ||
1058 | if (*format == '%') | |
1059 | format++; | |
1060 | else if (++n >= nargs) | |
1061 | ; | |
1062 | else if (*format == 'S') | |
1063 | { | |
1064 | /* For `S', prin1 the argument and then treat like a string. */ | |
1065 | register Lisp_Object tem; | |
1066 | tem = Fprin1_to_string (args[n], Qnil); | |
1067 | args[n] = tem; | |
1068 | goto string; | |
1069 | } | |
1070 | else if (XTYPE (args[n]) == Lisp_Symbol) | |
1071 | { | |
1072 | XSET (args[n], Lisp_String, XSYMBOL (args[n])->name); | |
1073 | goto string; | |
1074 | } | |
1075 | else if (XTYPE (args[n]) == Lisp_String) | |
1076 | { | |
1077 | string: | |
1078 | total += XSTRING (args[n])->size; | |
1079 | } | |
1080 | /* Would get MPV otherwise, since Lisp_Int's `point' to low memory. */ | |
1081 | else if (XTYPE (args[n]) == Lisp_Int && *format != 's') | |
1082 | { | |
1083 | /* The following loop issumes the Lisp type indicates | |
1084 | the proper way to pass the argument. | |
1085 | So make sure we have a flonum if the argument should | |
1086 | be a double. */ | |
1087 | if (*format == 'e' || *format == 'f' || *format == 'g') | |
1088 | args[n] = Ffloat (args[n]); | |
1089 | total += 10; | |
1090 | } | |
1091 | else if (XTYPE (args[n]) == Lisp_Float && *format != 's') | |
1092 | { | |
1093 | if (! (*format == 'e' || *format == 'f' || *format == 'g')) | |
1094 | args[n] = Ftruncate (args[n]); | |
1095 | total += 20; | |
1096 | } | |
1097 | else | |
1098 | { | |
1099 | /* Anything but a string, convert to a string using princ. */ | |
1100 | register Lisp_Object tem; | |
1101 | tem = Fprin1_to_string (args[n], Qt); | |
1102 | args[n] = tem; | |
1103 | goto string; | |
1104 | } | |
1105 | } | |
1106 | ||
1107 | { | |
1108 | register int nstrings = n + 1; | |
1109 | register unsigned char **strings | |
1110 | = (unsigned char **) alloca (nstrings * sizeof (unsigned char *)); | |
1111 | ||
1112 | for (n = 0; n < nstrings; n++) | |
1113 | { | |
1114 | if (n >= nargs) | |
1115 | strings[n] = (unsigned char *) ""; | |
1116 | else if (XTYPE (args[n]) == Lisp_Int) | |
1117 | /* We checked above that the corresponding format effector | |
1118 | isn't %s, which would cause MPV. */ | |
1119 | strings[n] = (unsigned char *) XINT (args[n]); | |
1120 | else if (XTYPE (args[n]) == Lisp_Float) | |
1121 | { | |
1122 | union { double d; int half[2]; } u; | |
1123 | ||
1124 | u.d = XFLOAT (args[n])->data; | |
1125 | strings[n++] = (unsigned char *) u.half[0]; | |
1126 | strings[n] = (unsigned char *) u.half[1]; | |
1127 | } | |
1128 | else | |
1129 | strings[n] = XSTRING (args[n])->data; | |
1130 | } | |
1131 | ||
1132 | /* Format it in bigger and bigger buf's until it all fits. */ | |
1133 | while (1) | |
1134 | { | |
1135 | buf = (char *) alloca (total + 1); | |
1136 | buf[total - 1] = 0; | |
1137 | ||
1138 | length = doprnt (buf, total + 1, strings[0], end, nargs, strings + 1); | |
1139 | if (buf[total - 1] == 0) | |
1140 | break; | |
1141 | ||
1142 | total *= 2; | |
1143 | } | |
1144 | } | |
1145 | ||
1146 | /* UNGCPRO; */ | |
1147 | return make_string (buf, length); | |
1148 | } | |
1149 | ||
1150 | /* VARARGS 1 */ | |
1151 | Lisp_Object | |
1152 | #ifdef NO_ARG_ARRAY | |
1153 | format1 (string1, arg0, arg1, arg2, arg3, arg4) | |
1154 | int arg0, arg1, arg2, arg3, arg4; | |
1155 | #else | |
1156 | format1 (string1) | |
1157 | #endif | |
1158 | char *string1; | |
1159 | { | |
1160 | char buf[100]; | |
1161 | #ifdef NO_ARG_ARRAY | |
1162 | int args[5]; | |
1163 | args[0] = arg0; | |
1164 | args[1] = arg1; | |
1165 | args[2] = arg2; | |
1166 | args[3] = arg3; | |
1167 | args[4] = arg4; | |
1168 | doprnt (buf, sizeof buf, string1, 0, 5, args); | |
1169 | #else | |
1170 | doprnt (buf, sizeof buf, string1, 0, 5, &string1 + 1); | |
1171 | #endif | |
1172 | return build_string (buf); | |
1173 | } | |
1174 | \f | |
1175 | DEFUN ("char-equal", Fchar_equal, Schar_equal, 2, 2, 0, | |
1176 | "Return t if two characters match, optionally ignoring case.\n\ | |
1177 | Both arguments must be characters (i.e. integers).\n\ | |
1178 | Case is ignored if `case-fold-search' is non-nil in the current buffer.") | |
1179 | (c1, c2) | |
1180 | register Lisp_Object c1, c2; | |
1181 | { | |
1182 | unsigned char *downcase = DOWNCASE_TABLE; | |
1183 | CHECK_NUMBER (c1, 0); | |
1184 | CHECK_NUMBER (c2, 1); | |
1185 | ||
1186 | if (!NULL (current_buffer->case_fold_search) | |
1187 | ? downcase[0xff & XFASTINT (c1)] == downcase[0xff & XFASTINT (c2)] | |
1188 | : XINT (c1) == XINT (c2)) | |
1189 | return Qt; | |
1190 | return Qnil; | |
1191 | } | |
1192 | ||
1193 | #ifndef MAINTAIN_ENVIRONMENT /* it is done in environ.c in that case */ | |
1194 | DEFUN ("getenv", Fgetenv, Sgetenv, 1, 2, 0, | |
1195 | "Return the value of environment variable VAR, as a string.\n\ | |
1196 | VAR should be a string. Value is nil if VAR is undefined in the environment.") | |
1197 | (str) | |
1198 | Lisp_Object str; | |
1199 | { | |
1200 | register char *val; | |
1201 | CHECK_STRING (str, 0); | |
1202 | val = (char *) egetenv (XSTRING (str)->data); | |
1203 | if (!val) | |
1204 | return Qnil; | |
1205 | return build_string (val); | |
1206 | } | |
1207 | #endif /* MAINTAIN_ENVIRONMENT */ | |
1208 | \f | |
1209 | void | |
1210 | syms_of_editfns () | |
1211 | { | |
1212 | DEFVAR_LISP ("system-name", &Vsystem_name, | |
1213 | "The name of the machine Emacs is running on."); | |
1214 | ||
1215 | DEFVAR_LISP ("user-full-name", &Vuser_full_name, | |
1216 | "The full name of the user logged in."); | |
1217 | ||
1218 | DEFVAR_LISP ("user-name", &Vuser_name, | |
1219 | "The user's name, based on the effective uid."); | |
1220 | ||
1221 | DEFVAR_LISP ("user-real-name", &Vuser_real_name, | |
1222 | "The user's name, base upon the real uid."); | |
1223 | ||
1224 | defsubr (&Schar_equal); | |
1225 | defsubr (&Sgoto_char); | |
1226 | defsubr (&Sstring_to_char); | |
1227 | defsubr (&Schar_to_string); | |
1228 | defsubr (&Sbuffer_substring); | |
1229 | defsubr (&Sbuffer_string); | |
1230 | ||
1231 | defsubr (&Spoint_marker); | |
1232 | defsubr (&Smark_marker); | |
1233 | defsubr (&Spoint); | |
1234 | defsubr (&Sregion_beginning); | |
1235 | defsubr (&Sregion_end); | |
1236 | /* defsubr (&Smark); */ | |
1237 | /* defsubr (&Sset_mark); */ | |
1238 | defsubr (&Ssave_excursion); | |
1239 | ||
1240 | defsubr (&Sbufsize); | |
1241 | defsubr (&Spoint_max); | |
1242 | defsubr (&Spoint_min); | |
1243 | defsubr (&Spoint_min_marker); | |
1244 | defsubr (&Spoint_max_marker); | |
1245 | ||
1246 | defsubr (&Sbobp); | |
1247 | defsubr (&Seobp); | |
1248 | defsubr (&Sbolp); | |
1249 | defsubr (&Seolp); | |
1250 | defsubr (&Sfollchar); | |
1251 | defsubr (&Sprevchar); | |
1252 | defsubr (&Schar_after); | |
1253 | defsubr (&Sinsert); | |
1254 | defsubr (&Sinsert_before_markers); | |
1255 | defsubr (&Sinsert_char); | |
1256 | ||
1257 | defsubr (&Suser_login_name); | |
1258 | defsubr (&Suser_real_login_name); | |
1259 | defsubr (&Suser_uid); | |
1260 | defsubr (&Suser_real_uid); | |
1261 | defsubr (&Suser_full_name); | |
d940e0e4 | 1262 | defsubr (&Scurrent_time); |
35692fe0 JB |
1263 | defsubr (&Scurrent_time_string); |
1264 | defsubr (&Ssystem_name); | |
1265 | defsubr (&Sset_default_file_mode); | |
1266 | defsubr (&Sunix_sync); | |
1267 | defsubr (&Smessage); | |
1268 | defsubr (&Sformat); | |
1269 | #ifndef MAINTAIN_ENVIRONMENT /* in environ.c */ | |
1270 | defsubr (&Sgetenv); | |
1271 | #endif | |
1272 | ||
1273 | defsubr (&Sinsert_buffer_substring); | |
1274 | defsubr (&Ssubst_char_in_region); | |
1275 | defsubr (&Stranslate_region); | |
1276 | defsubr (&Sdelete_region); | |
1277 | defsubr (&Swiden); | |
1278 | defsubr (&Snarrow_to_region); | |
1279 | defsubr (&Ssave_restriction); | |
1280 | } |